Piedmont and Blue Ridge carbonate-rock aquifers

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This data set represents the extent of the Piedmont and Blue Ridge carbonate-rock aquifers in the states of New Jersey, Pennsylvania, and Maryland.

Valley and Ridge aquifers

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This data set represents the extent of the Valley and Ridge aquifers in the states of New York, New Jersey, Pennsylvania, Maryland, Virginia, West Virginia, Tennesse, Georgia, and Alabama.

Pennsylvanian aquifers

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This data set represents the extent of the Pennsylvanian aquifers in the states of Pennsylavania, West Virginia, Ohio, Virginia, Kentucky, North Carolina, Tennessee, Alabama, Illinois, Indiana, and Michigan.

Geochemical data, thin section images, and modal mineralogy of selected bedrock samples in the western half of the Emporia 30’ x 60’ quadrangle, Virginia and North Carolina

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This data release contains geochemical data, thin section images, and modal mineralogy from bedrock samples collected in the western half of the Emporia 30’ x 60’ quadrangle, Virginia and North Carolina. The geochemical data comprise whole-rock major oxide and trace element abundances in 246 samples. Pairs of thin section images in plane-polarized light and cross-polarized light are included for 125 samples. Modal mineralogy was obtained by powder X-ray diffraction and the Rietveld method for 97 samples.

Volcanic and sedimentary-rock aquifers

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This data set represents the extent of the Volcanic and sedimentary-rock aquifers in the states of Montana, Wyoming, Idaho, Nevada, California, Oregon, and Washington.

Southeastern Coastal Plain aquifer system

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This data set represents the extent of the Southeastern Coastal Plain aquifer system in Kentucky, Tennessee, Mississippi, Alabama, Georgia, and South Carolina.

Miocene basaltic-rock aquifers

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This data set represents the extent of the Miocene basaltic-rock aquifers in the states of Idaho, Oregon, Washington, California, and Nevada.

Early Mesozoic basin aquifers

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This data set represents the extent of the Early Mesozoic basin aquifers in the states of Massachusettes, Connecticut, New York, New Jersey, Pennsylvania, Maryland, Virginia, and North Carolina.

Basin and Range carbonate-rock aquifers

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This data set represents the extent of the Basin and Range carbonate-rock aquifers in the states of Idaho, Utah, Arizona, Nevada, and California.

New York and New England carbonate-rock aquifers

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This data set represents the extent of the New York and New England carbonate-rock aquifers in the states of New York, Vermont, Maine, Massachusetts, Connecticut, New Jersey, and Pennsylvania.